Oil-burner.



J. J. MANN.

OIL BURNER..

APPLIOATION FILED HBA, 1913.

1,069,091, Patented `July 29, 1913.

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OILv BURNER. APPLIOA'ION FILED PEB. 4, 191s.

1O69,091 l Patented July 29, 1913.

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JOHN J. MANN, or SEATTLE, WASHINGTON,

OIL-BURNER.

Specication of Letters Patent.

rat-enten July sae-ele.

Application filed February 4, 1913. Serial No. 746,154.

To all 'whom it may concern:

Be it `lownthat I, JOHN J. MANN, citi vren of theUnited States, residing at Seattle,

in the county of King and State of Tasha `mgton'j have invented a certain new and use- `ful rnprovementin Oil-Burners of which :tol-lowing is a specification.

. italy inventionrelates to 'improvements in burners adapted to burn fluid fuel such as crude oil, kerosene,- gasolene? and the like, fbutfrnore particularly my invention relates to such 'burners that may be employed in connection with stoves adapted for` heating orcoolring, and the object of my invention islto -providea burner that shallbe lsimple inits construction, easily cleaned, coi'rlparatively inexpensive to manufacture, reliableand ecient in its operation, and that shall be adantedto utilize for its fuel different 'ruiner ljei'l products, and a further object of my Invention is to provide a burner that may bereadilyk attached to various forros of `eoininon stoves the;` are now in general use.

`trated in the accompanying drawings where .mm l :Figure 1 is a view in front elevationV of aburner embodying invention associated with portions ot stove which are shown in vertical section, Fig. 2 is a view'in vertical il Referring to the drawings, 5 is `the oir? eularbase portion of a burner, preferably of east. iron, having its bottoni end convex and its top 'surface slightly concave. Extending upwardly from opposite points on the top of and out of the 'base e are the two 'end portions 6, 6, of a pipe which is curved helioally `to forni .a cylindrical coil 7 disposed concen- Ytrioeliy with the Circle of the baile 5 and above' the cylindrioal'coil 7 the 'said pipe is formed to make loop 8 whichextends across from one side of the cylindrical coil 7 Atoits opposite side, and centrally,7 disposed in he under side of sald loop 8' 1s a small l ett-ain these by the devices illus? hole 9 through which may be emitted fuel to be burned and whereby such fuel may be directed downwardly through the center of the cylindrical coil 7 to impinge on the top concave surface of the base 5. Within the base of the burner, as shown in Fig. 2, is a' chamber 10 into the bottom of which leads a fuel supply pipe 11 provided with a valve 12 es sho-wn, in-Fig.-1, below which valve 12 .the pipe l1 is shown as 'broken od, butl such supply pipev 11 may be connected by Vany suitable means, fuel supply. A priming pan 13 is disposed beneath the base 5, such priming pan 13, being provided with an upwardly projecting hub le The priming pan 13 is disposed` to rest on a sheet 15 of asbesto-s' or other non-combustible material which sheet- 15 rests upon to cover and be supported by a grafting 16 of the tirebox of an ordinary type of stove notshown,-

the sheet 15 thus disposed-serves to prevent air trom passing directlyv from the space `beneath grate1`6 into the vlire-bor space above the grate 1 In a device/of` 1 I have provided an v airepipe 17 and an/aiihpipe 18 disposed on each ot' oppositey sides yof the burner withv their axes inclined tsw rd the Vertical axis of the burnerbase 5 and-supported by supporting plates 19to extend through the sheet 15 from above the grate 16 intothe space beneath said grate 16.-

The air pipes 17 as shown in Fig. 1, eX- tend upwardly inolining toward each other to terminate above and adjacent to opposite point-s on the upper edge of the cylindrical 4 `coil 7 while the pipes 1'8' likewise extend upwardly andtoward each other to terminate near opposite points adjacent to the top edge of the base 5. A Thus through the pipes 17 and` 18respectively air for combustion of fuel 'may be conducted frornK the. space beneath the grate l'up'wardly to the top of the cylindrical coil and't-othe top of the base 5. The lower ends of the pipey forming the coil '7,- a's shown in Fig. 27 are each p provided with a" screw-thread 20 which engage' with a screw' threadvwithin a bushing 21 which bushing 2l is screwed intoholes provided in the ltop wall of base 5 where it -is secured by a check-nut 22 thus to vertical position the two end portions 6, v6

not shown, with a source ofi l through which extends the pipe 11.

securely fasten in a of the pipe. In the top of base 5, atopposite points on aline at a right angle to a line through. theend portions G, 6 are disposed two holes provided with a lscrew@ thread which are plugged with screwsplugs 28, under some conditions of operation, but under other conditions one or both of such holes `may 4be connected by pipes to a source of steam, compressed air or fluid fuel supply.

In the operationof a burner constructed as' shown and described. the Vvalve 12 is opened slightly to admit fluid fuel through thepipe 11 into the chamber 10 of the base 5 to fill it, thence to rise through each of the end portions G, 6 of the pipe and through the cylindrical coil 7 into the loop 8 to be emitted downwardly through the small hole 9 into and through the space within the coil 7 to drop onto the concave surface of the top of base until such iiuid fuel over flows todrizzle into the priming pan 1 3`until there be enough fluid fuel within said priming pan 13 for heating the coil 71sufiiciently to vaporiz'e the Huid fuel whereupon the ,valve 12 .maybe shut and the huid fuel in the primingjpan 13 ignited to burn till the pipes 17 and 18 in an obvious manner.

y In some instances, if desired, one or both ofthe plugs 23 maybe removed and a pipe or pipes, not shown, may be connected to conduct steam or compressed air. into the chamber ldwithin the base 5. to mix with thefuel therein more rapidlytovolatilize or atomize the. fuel before itt is emitted from the small hole 9.'. The concave top of. the base 5 by acting as a sort of auxiliary.. facilitates the heating of theI 7 which coil 7 by its tortuous course priming pan coil through a space ofhigh temperature subjects the fuel within to such heat as will cause the fuel more readily to' volatilizefb'efore reaching the `point of combustion. i

structure of Figs. 1 and 2- are each supplied with-fa branch pipe- 25 which branch pipe 25,3terminates adjacent to thetop edge of the base 5' while the main portion of eachpipe 24 terminates above and adjacent to the top of the said coil 7 as holes beingadapted .to beunplugged and coiled and disposed Ato' extend "upward the space 'inclosed by said loop said base p0rtion'. p

l 3, Ina -burn'erfoffthe class described;,the .combination with-*a rbaseportion which is .A provided with-achamberadapted to- 'receive In Fig. 3I have shown aplan view of the.

. f f v fiuidfuelintosmd chamber, a loop of pipe In Fig. 4I have illustrated a modified form of air pipes for v conducting air to. points of combustion wherein air pipes 24 shown. Plates 26, 26 serve to support the 65:]

pipes 24 on the sheet 15 that rests upon a stove grate 16. Manifestly the structure of Fig. y.t is operative in the same manner as Y' the. structure of Figs. 1, 2, andl.

Gf course minor changes in the detailsof if construction of my invention may be made without departing from the spirit. thereof.

`What I claim. is: v

1. In a burner of the class described, the` combination with a base portion which is provided with a chamber adapted toreceive tluidfuel, of conduit means for'conducting fluid fuel into' said chamber, a loop of pipe coiled and disposed to extend upwardly y while-its two ends are connected with the top of said base portionY to communicate with said chamber in said portion, the central portion of vsaid loop of pipe being provided with ahole in its underside for the emission of fluid fuel, whereby -fluid fuel mayl flow from said chamber lupwardly.` through both sides ofsaid loop of pipe to and outof said hole thence downwardly therefrom` into the space inclosed by-said loop 'of coiled pipe, and a priming-pan'disi posed beneathV said.- base portion, su1tably Vsupported means 'for conducting air to .points of combustiom'and screw-plugged holes disposed in saidbase. portion, saidof supply of fluid under pressure. f

2. In a burner of the class described, the combination with l,base "portion .which is. provided with a, chamber ada ted toreceive duid fuel into said chamber, a loop oflpipe y while.- its. two ends are connected with. the, top of said ibase portion -to communicate with said'chamber in said portion, the c en. tral portion of said loop tof pipe being provided with ahole in. its'underside `for emission of 'duid' fuel,- whereby' fluid fuel, ma flow from 'said chamber upwardly v throng both sides'of 'said loop of pipe'to'and cutoff said hole thence vdownwardly,therefrom intoi of coiled pipe, and a .priming--pen disposed beneath fluid fuel, of conduit: means for conducting whileits-j two endslare connected. with the top ofv said base portion to. communicate 'with said' chamber 1n said'portion, the oentral 'portion of said' loop of-pipe being provided with 'a hole in its underside for einis- 'sion-of fluid fuel, whereby fluid fuel ma ow from said chamber upwardly throng f connected byconduit means with a 'source 100. fluid fuel, of conduit means or conducting A firs.;

coiled-Zand disposed to extend upwardly `1 both sides of said loop of pipe to and out of my name this twentieth day of January said hole thence downwardly therefrom into A. D., 1913. the space inclosed by said loop of coiled ipe, a priming-pan disposed beneath said JOHN J' MANN' 5 ase portion, and suitably supported means lvitnesses:

for conducting air to points of combustion. ANNA HAsKINs.

In witness whereof, I hereunto subscribe GEO. BLAH Copies o! this patent may be obtained for ve cents each, by addressing the Commissioner o! Patents, Washington, D. C." 

